1 (n.)
交通工具
例句：
when you travel, what kind of vehicle do you use?
当你旅行时，你都喜欢用什麽样的交通工具?
carry a chip on one's shoulder
以挑衅的态度出现
例句：
he is very difficult to deal with...he's always carried a chip on his shoulder about his lack of education.
他这个人很难对付……由于没能受到良好的教育，他整天都像要跟人家打架似的。
don't mention it!
不必客气。
对话：
a: excuse me, can i use your telephone?
b: of course. go ahead.
a: i'm sorry to bother you. but my phone hasn't been 2 yet.
b: don't mention it. you are welcome(at any time).
a：请问，我能用一下你的电话吗？
b：当然可以。用吧。
a：很抱歉打扰你。我的电话还没有装上。
b：不必客气。(随时)欢迎你来。
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